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13 tháng 12 2022

Bài 1 : look and write have or has

2) has 3) have 4) has 5) have 6) have

Bài 2 : look at exercise 1. Write questions and answers

2. does Zoe have a goldfish

Yes, he does

3. do Dave and Brian have a model plane

No, they don’t

4. does the alligator have a long tail

Yes, it does

5. do Zoe, Dave and Brian have a picnic basket

Yes, they do

6. does Brian have a new bike

Yes, he does

Bài 3 : look. Write the correct sentences

1. She doesn’t have red hair. She has brown hair

2. Brian doesn’t have a small glasses. He has big glasses

3. Dave and Brian don’t have long hair. They have short hair

4. Corky doesn’t have a small beak. It has a big beak

5. Vicky doesn’t have a green dress. She has a blue dress

6. They frogs don’t have short legs. They have long legs

Bài 4 : put the words in the correct order. Write true answers

1. Do you have red hair ?

Yes, I do/ no I don’t

2. Does your best friend have a bike ?

Yes, he does/ no, he doesn’t

3. Do we have a new teacher ?

Yes, we do/ no we don’t

4. Do people have beaks ?

Yes, they do/ no they don’t

5. Do you have a computer ?

Yes, I do/ no I don’t

6. Does a frog have a tail ?

Yes, it do/ no it doesn’t

 

2 tháng 5 2021

1. With

2. Language

3. Play

4. Positive

21 tháng 9 2021

1 had worked - went - is travelling

2 do you do - worked

3 had gone

4 got - had gone

5 met - hadn't seen

6 was making

7 is having

8 is making - makes

9 am wearing

10 is reading

11 borrows - remembers

12 is he doing - think - is polishing

13 saw - was painting

14 was reading

15 went 

16 was discovered

17 drinks - drank

18 does she do - plays - watches

19 are waiting 

20 had left

13 tháng 5 2021

\(CuO+H_2\underrightarrow{^{t^0}}Cu+H_2O\)

=> Phản ứng thế

\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)

=> Phản ứng hóa hợp

\(Cu\left(OH\right)_2\underrightarrow{^{t^0}}CuO+H_2O\)

=> Phản ứng phân hủy

\(3Fe+2O_2\underrightarrow{^{t^0}}Fe_3O_4\)

=> Phản ứng hóa hợp

\(2KClO_3\underrightarrow{^{t^0}}2KCl+3O_2\)

=> Phản ứng phân hủy

\(Ba+2H_2O\rightarrow Ba\left(OH\right)_2+H_2\)

=> Phản ứng thế

\(Mg+2HCl\rightarrow MgCl_2+H_2\)

=> Phản ứng thế

 

13 tháng 5 2021

anh ơi anh nhầm phản ứng hóa hợp vs phản ứng phân hủy ạ !!!

17 tháng 7 2021

23 Has Nga read

24 Have they played

25 Have - already washed

26 Is -travelling

7 makes

8 started

9 are - are playing

17 tháng 7 2021

has nga read

have they played

have ....already washed

Is ....travelling

is always making

started

are-are playing

cái này áp dụng hệ thức lượng thôi bạn

AH=căn 6^2-4,8^2=3,6cm

=>AC=6^2/3,6=10cm

22 tháng 4 2023

dạ em cám onnnn

23 tháng 5 2021

o.nhìn.rõ

 

30 tháng 9 2021

1. bag

2. bunch

3. slice

4. box

5. piece

6. carton

7. can

8. bowl

9. jar

10. bottle